/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.jbpm.workflow.core.node;

import org.jbpm.workflow.core.Constraint;
import org.jbpm.workflow.core.impl.ConnectionRef;

public class ConstraintTrigger extends Trigger implements Constrainable {

    private static final long serialVersionUID = 510l;

    private String constraint;
    private String header;

    public String getConstraint() {
        return constraint;
    }

    public void setConstraint(String constraint) {
        this.constraint = constraint;
    }

    public String getHeader() {
        return header;
    }

    public void setHeader(String header) {
        this.header = header;
    }

    public void addConstraint(ConnectionRef connection, Constraint constraint) {
        if (connection != null) {
            throw new IllegalArgumentException(
                    "A constraint trigger only accepts one simple constraint");
        }
        this.constraint = constraint.getConstraint();
    }

}
